Monarch of Gluttony: System of Sin - Chapter 12: 12: Library of Sin

On her wedding day, she was humiliated; her status as the legitimate wife was instantly changed into that of a concubine.

Zhou Yu, a reclusive otaku who did not like to go out of his house, was one day forced out of his house by a series of unexpected events.

Traveling through time, he became Zhang Gui, a foreign relative of the Tianqi Dynasty. Because he didn’t want to be tortured to death by Li Zicheng in the future, he had to embark on the road of harming the powerful and bureaucratic officials of the Ming Dynasty.

The Yanguan scolded him for coercing the king and making disorderly manners.

The prince scolded him for being greedy.

The official hates him for being mean and cruel.

But helplessly, most of the Nine Frontiers are his lackeys, and even Jiu Qiansui is his godson, and the emperor can’t do anything about him.

Therefore, the Ming Dynasty was at the mercy of him.

- Description from novelbuddy

For some reason, Shao Qian devoured half of the system that tried to devour his soul after tricking him into completing missions in worlds where he was horribly humiliated.

Since he didn’t feel like returning to his original world anymore, he decided to return to the worlds of which he had the coordinates and retaliate against them!

But…….

Why is it that every world seems not quite right?

Could it be the method he used to cross through the worlds was wrong?

Why is the female lead completely ignored by the male lead who, for some reason, is currently sticking to him like glue?

- Description from Novelupdates